Optional
This field specifies, for the forward available balance, whether it is a debit or credit balance, the date, the unit of metal and amount of the balance.
D/C Mark must contain one of the following codes (Error code(s): T51):
Unit must contain one of the following codes (Error code(s): T06):
Date must be a valid date expressed as YYMMDD (Error code(s): T50).
Amount must not contain more than six digits following the decimal comma (Error code(s): C89).
The integer part of Amount must contain at least one digit. The decimal comma ',' is mandatory and is included in the maximum length. (Error code(s): T40, T43).
Unit specifies the code for the unit of metal associated with this metal account.